What is the CVSS score of CVE-2021-20066?

CVE-2021-20066 has a CVSS 3.1 base score of 5.6 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L. EPSS exploitation probability: 1.4%.

Is there a public PoC exploit available for CVE-2021-20066?

Yes, a public proof-of-concept exploit is available for CVE-2021-20066. Prioritise patching immediately. EPSS: 1.4%.

Jsdom CVE-2021-20066

MEDIUM

2021-02-16 vulnreport@tenable.com

Information Disclosure Jsdom

5.6

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.6 MEDIUM

AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

CVE Published

Feb 16, 2021 - 20:15 nvd

MEDIUM 5.6

DescriptionNVD

JSDom improperly allows the loading of local resources, which allows for local files to be manipulated by a malicious web page when script execution is enabled.

AnalysisAI

JSDom improperly allows the loading of local resources, which allows for local files to be manipulated by a malicious web page when script execution is enabled. Rated medium severity (CVSS 5.6), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

Technical ContextAI

JSDom improperly allows the loading of local resources, which allows for local files to be manipulated by a malicious web page when script execution is enabled. Affected products include: Jsdom Project Jsdom.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.